A injection molding: Plastic material is heated to melt in the
heating cylinder injection molding machine, and then pushed by the
reciprocating screw will melt to a method for closing a mold cavity
in the molding. It not only can be obtained with high accuracy at
high productivity, high-quality products, and processed plastic
varieties, yield (about 1/3 of the total plastic) and versatile,
therefore, is a plastic injection molding process important one
molding method.
B Extrusion: extrusion in an extruder by heating, pressurizing
fluid state continuously leaving the plastic through a die molding
method. Generally used for sheet. Pipe. Monofilaments. Biansi.
film. Wire and cable coating and the like molding, wide use. High
yield. Therefore, it is an important one plastics molding method.
C foam molding: refers to the foam blowing agent added to the
appropriate produce porous or bubble products – adding foamed
article having a relatively low density, high strength, and raw
materials with less noise, heat insulation V point, the foam
material PVC, PE, and PS. Products include: film, sheet, tubing,
and profiles. Foam can be divided into chemical foaming and
physical foaming.
D Blow Molding: Blow ( inflation film ) molding (or blow molding )
refers to the use of fluid ( air ) pressure in the closed mold
heated thermoplastic parison or sheet blow molding method into a
hollow article . In this way the production of plastic containers .
Such as various bottles, square, round or flat barrels, gasoline
tanks, etc., have been widely used, the newly developed variety of
industrial parts and household products, such as double-walled
box-shaped products, L- ring big drums. Stacking plate. surfboard.
Desk and seat back, and a front spoiler for automobiles. Belt
cover. Dashboard. Air conditioning and ventilation tubes, etc.,
have been applied in practice , the materials are processed from
commodity plastics to develop engineering plastics. Blow molding
plastic processing has now become one of the important molding
method.
